JP5390347B2 - Lightweight heat-resistant protective clothing - Google Patents
Lightweight heat-resistant protective clothing Download PDFInfo
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- JP5390347B2 JP5390347B2 JP2009264034A JP2009264034A JP5390347B2 JP 5390347 B2 JP5390347 B2 JP 5390347B2 JP 2009264034 A JP2009264034 A JP 2009264034A JP 2009264034 A JP2009264034 A JP 2009264034A JP 5390347 B2 JP5390347 B2 JP 5390347B2
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- 230000001681 protective effect Effects 0.000 title claims description 24
- 239000010410 layer Substances 0.000 claims description 56
- 239000000835 fiber Substances 0.000 claims description 39
- 239000002344 surface layer Substances 0.000 claims description 24
- 239000004744 fabric Substances 0.000 claims description 23
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- 238000012360 testing method Methods 0.000 claims description 9
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- 239000004745 nonwoven fabric Substances 0.000 claims description 5
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 7
- 229920001494 Technora Polymers 0.000 description 7
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- 238000000034 method Methods 0.000 description 5
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- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
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- 238000009940 knitting Methods 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 206010019345 Heat stroke Diseases 0.000 description 1
- 229920006282 Phenolic fiber Polymers 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004693 Polybenzimidazole Substances 0.000 description 1
- 229920003071 Polyclar® Polymers 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
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- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
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- 229920001601 polyetherimide Polymers 0.000 description 1
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- 229920006264 polyurethane film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
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Description
本発明は、耐熱性防護服に関し、さらに詳しくは、耐薬品性及び透湿防水性に優れるだけでなく、高遮熱性と軽量性、また柔軟性を有する耐熱性防護服に関する。 The present invention relates to a heat-resistant protective garment, and more particularly, to a heat-resistant protective garment that not only has excellent chemical resistance and moisture-permeable waterproof properties, but also has high heat shielding properties, light weight, and flexibility.
消防士が消火作業中に着用する耐熱防護服を構成する繊維としては、アラミド繊維、ポリフェニレンスルフィド、ポリイミド、ポリベンズイミダゾールなどの難燃性の有機繊維からなる布帛に輻射熱を防止する目的から金属アルミニウム等をコーティングあるいは蒸着等により、表面加工したものが多く使用されている。近年この輻射熱も非常に重要なスペックとなり、ＩＳＯ１１６１３のアプローチＡには、耐火炎試験（ＩＳＯ９１５１）、耐輻射熱試験（ＩＳＯ６９４２）のスペックがそれぞれ１３秒以上と１８秒以上と記載されている。 As a fiber constituting the heat-resistant protective clothing worn by firefighters during fire extinguishing work, metal aluminum is used for the purpose of preventing radiant heat from a fabric made of flame-retardant organic fiber such as aramid fiber, polyphenylene sulfide, polyimide, polybenzimidazole, etc. In many cases, the surface is processed by coating or vapor deposition. In recent years, this radiant heat has also become a very important specification, and ISO 11613 Approach A describes the specifications of the flame resistance test (ISO9151) and the radiation heat resistance test (ISO6942) as 13 seconds or more and 18 seconds or more, respectively.
また、耐熱性だけでなく夏場の作業でのヒートストレスによる熱射病を予防するため、近年では、内層にアイスパックを使用したり、縫製にて通気性を確保したりという手段が用いられている。中でも、軽量化はヒートストレスを軽減する一手段であり、従来より課題となっている。
こうした耐熱防護服として、特開２００６−１６７０９号公報に二層構造を有する防護服があげられているが、必要性能が示されていず、また十分に軽量であるとは言えない。
In addition to heat resistance, in order to prevent heat stroke caused by heat stress during summer work, in recent years, means such as using ice packs for the inner layer or ensuring air permeability by sewing have been used. Yes. In particular, weight reduction is a means for reducing heat stress and has been a problem from the past.
As such heat-resistant protective clothing, Japanese Patent Application Laid-Open No. 2006-16709 discloses a protective clothing having a two-layer structure. However, the required performance is not shown, and it cannot be said that the clothing is sufficiently light.
本発明は上記従来技術を背景になされたもので、その目的は、耐薬品性及び透湿防水性に優れるだけでなく、重量を変えず積層枚数を減らすことによる軽量快適性と柔軟性、また高遮熱性を有する耐熱性防護服を提供することにある。 The present invention has been made against the background of the above-described prior art, and its purpose is not only excellent in chemical resistance and moisture permeability and waterproofness, but also lightweight comfort and flexibility by reducing the number of laminated layers without changing the weight, and The object is to provide a heat-resistant protective clothing having high heat shielding properties.
高遮熱性と軽量性、また柔軟性を有する耐熱性防護服に関して鋭意検討した結果得られたものであり、すなわち本発明によれば、
表地層と遮熱層の２層積層された布帛からなる耐熱性防護服であって、下記要件を満足することを特徴とする耐熱性防護服。
ａ）表地層と遮熱層の厚みが、下記式を満足すること。
５．０ｍｍ≧遮熱層厚み（ｍｍ）≧−０．７５×表地厚み（ｍｍ）＋３．２ｍｍ
ｂ）遮熱層が、透湿防水層の少なくとも片面にメタ系アラミド繊維とパラ系アラミド繊維のうち少なくとも１種類を含む織物、編物、不織布の群から選ばれる少なくとも１種の繊維構造体が積層されている構成であること。
ｃ）布帛のＲＨＴＩ２４（ＩＳＯ１１６１３記載のアプローチＡスペックにおける耐輻射熱試験（ＩＳＯ６９４２）において、２４℃温度上昇するまでの時間）が１８秒以上であること。
好ましくは、耐熱性防護服の布帛の目付けが４００〜５２０ｇ／ｍ２であり、遮熱層がアラミド繊維８０％以上を含み、表地層がパラ系アラミド繊維を該表地層全繊維重量に対し１〜７０重量％含む耐熱性防護服、
が提供される。
It is obtained as a result of earnest examination regarding heat-resistant protective clothing having high heat shielding and light weight, and flexibility, that is, according to the present invention,
A heat-resistant protective clothing comprising a fabric in which two layers of a surface layer and a heat-shielding layer are laminated, and satisfies the following requirements.
a) The thickness of the surface layer and the heat shielding layer satisfy the following formula.
5.0 mm ≧ heat shielding layer thickness (mm) ≧ −0.75 × surface thickness (mm) +3.2 mm
b) At least one type of fiber structure selected from the group of woven fabrics, knitted fabrics, and nonwoven fabrics containing at least one of meta-aramid fibers and para-aramid fibers is laminated on at least one surface of the moisture-permeable and waterproof layer. It must be configured.
c) The RHTI 24 of the fabric (the time required for the temperature to rise by 24 ° C. in the radiant heat test (ISO6942) in the approach A specification described in ISO11613) is 18 seconds or more.
Preferably, the fabric weight of the heat-resistant protective clothing is 400 to 520 g / m 2 , the heat-shielding layer contains 80% or more of aramid fibers, and the surface layer contains 1 unit of para-aramid fibers with respect to the total fiber weight of the surface layer. Heat-resistant protective clothing containing ~ 70% by weight,
Is provided.
本発明の耐熱性防護服は軽量で、且つ遮熱性、強度、透湿防水性に優れるものである。 The heat-resistant protective clothing of the present invention is lightweight and has excellent heat shielding properties, strength, and moisture permeability and waterproofness.
本発明は、表地層、透湿防水機能を有する遮熱層からなる防護服の表地層、及び遮熱層厚みが、以下式を満足し、かつＩＳＯ１１６１３記載のアプローチＡスペックにおける耐輻射熱試験（ＩＳＯ６９４２）において２４度温度上昇するまでの時間ＲＨＴＩ２４が１８秒以上であることを特徴とする耐熱防護服を提供することである。
５．０ｍｍ≧遮熱層厚み（ｍｍ）≧−０．７５×表地厚み（ｍｍ）＋３．２ｍｍ
In the present invention, the surface layer of the protective clothing composed of the surface layer, the heat-insulating layer having a moisture-permeable waterproof function, and the thickness of the heat-shielding layer satisfy the following formula, and the radiant heat resistance test (ISO6942) in the approach A specification described in ISO11613. ) RHTI 24 until the temperature rises by 24 degrees in 18) is 18 seconds or more.
5.0 mm ≧ heat shielding layer thickness (mm) ≧ −0.75 × surface thickness (mm) +3.2 mm
以下、本発明を詳細に説明する。
本発明の耐熱防護服用布帛は、表地層、遮熱層ともに、パラ系のアラミド繊維、メタ系アラミド繊維を単独、もしくは混合使用して用いるが、他に混合使用耐熱性繊維として、ポリベンゾイミダゾール繊維、ポリイミド繊維、ポリアミドイミド繊維、ポリエーテルイミド繊維、ポリアリレート繊維、ポリパラフェニレンベンゾビスオキサゾール繊維、ノボロイド繊維、難燃アクリル繊維、ポリクラール繊維、難燃ポリエステル繊維、難燃綿繊維、難燃レーヨン繊維、難燃ビニロン繊維、難燃ウール繊維が挙げられる。
Hereinafter, the present invention will be described in detail.
The heat-resistant protective clothing fabric of the present invention uses both a para-aramid fiber and a meta-aramid fiber either alone or in combination for both the surface layer and the heat-shielding layer. Fiber, polyimide fiber, polyamideimide fiber, polyetherimide fiber, polyarylate fiber, polyparaphenylene benzobisoxazole fiber, novoloid fiber, flame retardant acrylic fiber, polyclar fiber, flame retardant polyester fiber, flame retardant cotton fiber, flame retardant rayon fiber And flame retardant vinylon fiber and flame retardant wool fiber.
まず表地層について説明する。表地層はメタ系アラミド繊維とパラ系アラミド繊維からなる布帛により構成され、布帛の種類としては、織編物、及び、不織布が使用されるが、実用的には強度の点で布帛とすることが好ましい。
また、該メタ系アラミド繊維とパラ系アラミド繊維は、フィラメント、混繊糸、紡績糸等の形で使用できるが、混紡して紡績糸の形態で使用するものが好ましい。
First, the surface layer will be described. The surface layer is composed of a fabric composed of meta-aramid fibers and para-aramid fibers, and woven or knitted fabrics and non-woven fabrics are used as the types of fabrics. preferable.
The meta-aramid fibers and para-aramid fibers can be used in the form of filaments, blended yarns, spun yarns, etc., but those that are blended and used in the form of spun yarns are preferred.
パラ系アラミド繊維の混合比率としては、表地層を構成する全繊維重量に対して、１〜７０重量％であることが好ましい。さらに好ましくは２〜６０重量％である。該パラ系アラミド繊維の混合比率が、１重量％未満では、火炎に暴露された際に布帛が破壊、つまり穴があくおそれがあり、また、７０重量％を超えると、該パラ系アラミド繊維がフィブリル化して耐摩耗性が低下するので好ましくない。 The mixing ratio of the para-aramid fibers is preferably 1 to 70% by weight with respect to the total weight of the fibers constituting the surface layer. More preferably, it is 2 to 60% by weight. If the mixing ratio of the para-aramid fibers is less than 1% by weight, the fabric may be broken, that is, pierced when exposed to a flame. If the mixing ratio exceeds 70% by weight, the para-aramid fibers It is not preferable because it is fibrillated and wear resistance is lowered.
該表地層はシングルプライ、ダブルプライであってもよい。
該表地層に対しては、コーティング法、スプレー法、又は、浸漬法などの加工法により、フッ素系の撥水樹脂を付与して加工することにより高い耐水性能や耐薬品性能を有する防護服とすることができる。
The surface layer may be single ply or double ply.
For the surface layer, protective clothing having high water resistance and chemical resistance by processing by applying a fluorine-based water repellent resin by a processing method such as a coating method, a spray method, or an immersion method. can do.
本発明の遮熱層は、透湿防水層を有し、その少なくとも片面にアラミド繊維であるメタ系アラミド繊維とパラ系アラミド繊維が少なくとも１種類が含まれる織物、編物、不織布の群から選ばれる少なくとも１種の繊維構造体が積層されていることが必要である。 The heat-insulating layer of the present invention has a moisture-permeable and waterproof layer, and is selected from the group of woven fabrics, knitted fabrics, and nonwoven fabrics including at least one type of meta-aramid fibers and para-aramid fibers that are aramid fibers on at least one surface thereof. It is necessary that at least one fiber structure is laminated.
アラミド繊維は遮熱層全繊維重量に対して８０％以上含まれることが好ましい。アラミド繊維以外の素材としては、ポリエステル繊維、綿繊維、レーヨン繊維、ビニロン繊維、ウール繊維が挙げられる。ただしその混率は２０％未満であることが望ましい。好ましくは１５％以下である。２０％を超える場合は、ＪＩＳ Ｌ １０９１ Ａ−４法やＪＩＳ Ｌ １０９１ Ａ−１法の試験時に残炎が見られたり、また溶融する場合がある。 The aramid fibers are preferably contained in an amount of 80% or more based on the total weight of the heat shielding layer. Examples of materials other than aramid fibers include polyester fibers, cotton fibers, rayon fibers, vinylon fibers, and wool fibers. However, the mixing ratio is desirably less than 20%. Preferably it is 15% or less. When it exceeds 20%, afterflame may be seen or melted during the test of JIS L 1091 A-4 method or JIS L 1091 A-1 method.
透湿防水層としては、公知の透湿防水機能を有するポリテトラフルオロエチレンフィルムやポリウレタン皮膜等を挙げることができ、接着剤を用いて上記の繊維構造体を貼り付けることが好ましい。 As a moisture-permeable waterproof layer, a polytetrafluoroethylene film, a polyurethane film, etc. which have a publicly known moisture-permeable waterproof function can be mentioned, and it is preferred to stick the above-mentioned fiber structure using an adhesive.
また表地層の厚みと遮熱層の厚みは、以下式を満足することが重要である。以下式に適応しない場合、防護服の目付けが４００〜５２０ｇ／ｍ２において、表地層表面にアルミコーティングなし、特にネイビー色やブラック色などはＩＳＯ１１６１３のアプローチＡスペックである耐輻射熱試験（ＩＳＯ６９４２）１８秒以上を満たすことが困難となる。
５．０ｍｍ≧遮熱層厚み（ｍｍ）≧−０．７５×（表地厚み（ｍｍ））＋３．２ｍｍ
Moreover, it is important that the thickness of the surface layer and the thickness of the heat shielding layer satisfy the following expressions. When the following formula is not applied, when the weight of the protective clothing is 400 to 520 g / m 2 , the surface of the surface layer is not coated with aluminum. It becomes difficult to satisfy more than a second.
5.0 mm ≧ heat shielding layer thickness (mm) ≧ −0.75 × (surface thickness (mm)) + 3.2 mm
上記式を導く根拠として、表地層を固定し、透湿防水膜にラミネートした厚みの異なる遮熱層を用いた積層体においてＩＳＯ６９４２試験を実施したところ、遮熱層厚みに比例して遮熱性は高くなることがわかった。その遮熱層厚みとＲＨＴＩ２４の比例式よりＲＨＴＩ２４が１８秒以上を満たす遮熱層厚みを算出した。また、上記式を満たすことで遮熱性能はＩＳＯ１１６１３のアプローチＡスペックを満たすことが可能であるが、遮熱層の厚みは５．０ｍｍ以下が好ましい。好ましくは１．３ｍｍ〜４．０ｍｍ、更に好ましくは２．０ｍｍ〜３．５ｍｍである。更に好ましくは２．８ｍｍである。厚みが５．０ｍｍを越えると、活動性が悪くなり、また厚みを出すために製織、製編の際、経緯密度を減少させなければならず、スリップが考えられる。透湿防水層には片面ラミネート、もしくは両面ラミネートを実施している。また織物、編物については起毛加工やパイル地にして嵩性をアップしておくことが好ましい。 As a basis for deriving the above formula, when an ISO6942 test was performed on a laminate using a heat shield layer having a different thickness with a surface layer fixed and laminated to a moisture permeable waterproof membrane, the heat shield property was proportional to the heat shield layer thickness. I found it to be higher. Its RHTI 24 than proportional of the thermal barrier layer thickness and RHTI 24 was calculated thermal layer thickness barrier meet over 18 seconds. Further, by satisfying the above formula, the heat shielding performance can satisfy the approach A specification of ISO11613, but the thickness of the heat shielding layer is preferably 5.0 mm or less. Preferably they are 1.3 mm-4.0 mm, More preferably, they are 2.0 mm-3.5 mm. More preferably, it is 2.8 mm. When the thickness exceeds 5.0 mm, the activity deteriorates, and in order to increase the thickness, the weft density must be reduced during weaving and knitting, and slipping is considered. Single-sided or double-sided lamination is applied to the moisture-permeable waterproof layer. For woven fabrics and knitted fabrics, it is preferable to increase the bulkiness by raising or piling up.
防護服布帛の目付けは４００〜５２０ｇ／ｍ２が好ましく、４００ｇ／ｍ２未満であると、ＩＳＯ１１６１３のアプローチＡスペックである、耐火炎試験（ＩＳＯ９１５１）、耐輻射熱試験（ＩＳＯ６９４２）のスペックのそれぞれ１３秒以上と１８秒以上を満たすことが厳しくなる。また５２０ｇ／ｍ２を超える場合、防護服の重量を増加させ、着用者の動きを阻害するようになる。 Basis weight of the protective clothing fabric is preferably 400~520g / m 2, is less than 400 g / m 2, an approach A specification of ISO11613, Flame-resistant test (ISO9151), the respective specifications of resistance radiant heat test (ISO6942) 13 It becomes strict to satisfy more than second and more than 18 seconds. Moreover, when it exceeds 520 g / m < 2 >, the weight of protective clothing will be increased and a wearer's movement will be inhibited.
以下、実施例を挙げて本発明を更に詳しく説明する。なお、実施例に用いた評価項目の測定は下記の方法で行った。
（１）遮熱性（耐輻射熱）
ＩＳＯ６９４２（２００２）に基づき熱流束４０ｋW／ｍ２において、輻射熱暴露開始から銅製のセンサーが２４℃上昇する時間、RＨＴＩ２４を求めた。
（２）遮熱性（耐火炎）
ＩＳＯ９１５１に基づき、対流熱暴露開始からの銅製のセンサーが２４℃上昇する時間、ＨＴＩ２４を求めた。
（３）厚み
ＪＩＳ Ｌ １０１８（有毛編物）用に準拠し、３ｇ／ｃｍ２の荷重をかけ測定を行った。
Hereinafter, the present invention will be described in more detail with reference to examples. In addition, the measurement of the evaluation item used for the Example was performed with the following method.
(1) Thermal insulation (radiation resistant)
Based on ISO6942 (2002), RHTI 24 was determined for the time when the copper sensor rose by 24 ° C. from the start of radiant heat exposure at a heat flux of 40 kW / m 2 .
(2) Thermal insulation (fire resistance)
Based on ISO 9151, HTI 24 was determined as the time for the copper sensor to rise by 24 ° C. from the start of convective heat exposure.
(3) Thickness Based on JIS L 1018 (hair knitted fabric), a load of 3 g / cm 2 was applied and measurement was performed.
［実施例１］
表地層は２層構造とし、上層には、ポリメタフェニレンイソフタルアミド繊維（帝人テクノプロダクツ社製、商標名：コーネックス）とコパラフェニレン・３、４’オキシジフェニレンテレフタルアミド繊維（帝人テクノプロダクツ会社製、商標名：テクノーラ）とを混合比率が９０：１０ となる割合で混合した耐熱繊維からなる紡績糸（番手：４０／２）を用いて平織りにしたもの、また、下層にはコパラフェニレン・３、４’オキシジフェニレンテレフタルアミド繊維（帝人テクノプロダクツ会社製、商標名：テクノーラ）１００％の紡績糸（番手：４０／−）を平織りに製織したものを用いた。上層と下層の織物は下層に使用したテクノーラ紡績糸を用い格子間隔２０ｍｍでキルト加工した。表地層の目付けは２０５ｇ／ｍ２であった。
[Example 1]
The outer layer is a two-layer structure, and the upper layer is polymetaphenylene isophthalamide fiber (trade name: Conex, manufactured by Teijin Techno Products Co., Ltd.) and
遮熱層には、ポリメタフェニレンイソフタルアミド繊維（帝人テクノプロダクツ社製、商標名：コーネックス）とコパラフェニレン・３、４’オキシジフェニレンテレフタルアミド繊維（帝人テクノプロダクツ会社製、商標名：テクノーラ）とを混合比率が９５：５ となる割合で混合した耐熱繊維からなる紡績糸（番手：４０／−）を用いて平織りに織成した織布（目付：５０ｇ／ｍ２）をポリテトラフルオロエチレン製の透湿防水性フィルム（ジャパンゴアテックス社製）の片面に接着剤を用いてラミネートした。もう片側には、ポリメタフェニレンイソフタルアミド繊維（帝人テクノプロダクツ社製、商標名：コーネックス）１．７ｄｔｅｘ、繊維長５１ｍｍとコパラフェニレン・３、４’オキシジフェニレンテレフタルアミド繊維（帝人テクノプロダクツ社製、商標名：テクノーラ）２．２ｄｔｅｘ、繊維長５１ｍｍとを混合比率が９５：５となる割合で混綿した後カーディング後、クロスラッパーで積層し厚みが２．８ｍｍとなるよう調整してニードルパンチ（針種ＦＰＤ１−３６、オルガン針株製、針深度１１ｍｍ、２００本／ｃｍ２）を表裏２回通した不織布（目付は２１０ｇ／ｍ２）を同様にラミネートした。遮熱層の目付けは２９０ｇ／ｍ２である。
これらの表地層の上層を上とし、その下に遮熱層を重ねて２層を積層した布帛を作成し布帛の遮熱性評価を実施した。結果を表１に示す。
For the heat shielding layer, polymetaphenylene isophthalamide fiber (manufactured by Teijin Techno Products Co., Ltd., trade name: Cornex) and
Fabrics in which the upper layers of these surface layers were placed on top and a heat shielding layer on top of them were laminated to form two layers were prepared, and the heat shielding properties of the fabrics were evaluated. The results are shown in Table 1.
［実施例２］
表地は実施例１と同様のものを使用した。遮熱層には実施例１と同様の織布を用いてポリテトラフルオロエチレン製の透湿防水性フィルム（ジャパンゴアテックス社製）の片側にラミネートし、また、ポリメタフェニレンイソフタルアミド繊維（帝人テクノプロダクツ社製、商標名：コーネックス）とコパラフェニレン・３、４’オキシジフェニレンテレフタルアミド繊維（帝人テクノプロダクツ会社製、商標名：テクノーラ）とを混合比率が９５：５ となる割合で混合した耐熱繊維からなる紡績糸（番手２０／−）を用いて丸編みを作成し、上記のポリテトラフルオロエチレン製の透湿防水性フィルム（ジャパンゴアテックス社製）のもう一方の片面にラミネートした。得られた遮熱層の目付けは２５０ｇ／ｍ２であった。
これらの表地層の上層を上とし、その下に遮熱層を重ねて２層を積層した布帛を作成し布帛の遮熱性評価を実施した。結果を表１に示す。
[Example 2]
The same dress material as in Example 1 was used. The heat shielding layer is laminated on one side of a polytetrafluoroethylene moisture-permeable waterproof film (Japan Gore-Tex) using the same woven fabric as in Example 1, and polymetaphenylene isophthalamide fiber (Teijin) Techno-Products, trade name: Conex) and
Fabrics in which the upper layers of these surface layers were the upper layer and the thermal barrier layer was overlapped under the upper layers were formed to laminate two layers, and the thermal barrier properties of the fabric were evaluated. The results are shown in Table 1.
［比較例１］
表地層は実施例１と同様に行い、遮熱層にはポリメタフェニレンイソフタルアミド繊維（帝人テクノプロダクツ社製、商標名：コーネックス）とコパラフェニレン・３、４’オキシジフェニレンテレフタルアミド繊維（帝人テクノプロダクツ株式会社製、商標名：テクノーラ）とを混合比率が９５：５となる割合で混合した耐熱繊維からなる紡績糸（番手：４０／−）を用いて平織りに織成した。織布（ 目付：６５ｇ／ｍ２）をポリテトラフルオロエチレン製の透湿防水性フィルム（ジャパンゴアテックス社製）の両面にラミネートしたものを用いた。得られた遮熱層の目付けは１７０ｇ／ｍ２であった。
[Comparative Example 1]
The surface layer is the same as in Example 1, and the heat shielding layer is polymetaphenylene isophthalamide fiber (trade name: Conex, manufactured by Teijin Techno Products) and
本発明の耐熱性防護服は耐薬品性及び透湿防水性に優れるだけでなく、軽量で柔軟性、また高遮熱性を有するので消防服、耐火服として有用である。 The heat-resistant protective clothing of the present invention is not only excellent in chemical resistance and moisture permeability and waterproofness, but also is lightweight, flexible, and highly heat-insulating, so that it is useful as a fire-resistant clothing and fire-resistant clothing.
Claims (4)
ａ）表地層と遮熱層の厚みが、下記式を満足すること。
５．０ｍｍ≧遮熱層厚み（ｍｍ）≧−０．７５×（表地厚み（ｍｍ））＋３．２ｍｍ
ｂ）遮熱層が透湿防水層を有し、該透湿防水層の少なくとも片面にメタ系アラミド繊維とパラ系アラミド繊維のうち少なくとも１種類の繊維を含む織物、編物、不織布の群から選ばれる少なくとも１種類の繊維構造体が積層されている構成であること。
ｃ）布帛のＲＨＴＩ２４（ＩＳＯ１１６１３記載のアプローチＡスペックにおける耐輻射熱試験（ＩＳＯ６９４２）において、２４℃温度上昇するまでの時間）が１８秒以上であること。 A heat-resistant protective clothing comprising a fabric in which two layers of a surface layer and a heat-shielding layer are laminated, and satisfies the following requirements.
a) The thickness of the surface layer and the heat shielding layer satisfy the following formula.
5.0 mm ≧ heat shielding layer thickness (mm) ≧ −0.75 × (surface thickness (mm)) + 3.2 mm
b) The heat shield layer has a moisture permeable waterproof layer, and is selected from the group of woven fabrics, knitted fabrics, and nonwoven fabrics containing at least one kind of meta-aramid fiber and para-aramid fiber on at least one surface of the moisture permeable waterproof layer A structure in which at least one type of fiber structure is laminated.
c) The RHTI 24 of the fabric (the time required for the temperature to rise by 24 ° C. in the radiant heat test (ISO6942) in the approach A specification described in ISO11613) is 18 seconds or more.
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| CA2618266C (en) * | 2005-08-09 | 2014-01-28 | Teijin Techno Products Limited | Two-layer fabric and heat-resistant protective clothing containing the same |
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